Gale Virtual Reference Library allows you to browse the eTable of Contents (eTOC), where available, for the eBooks in your collection. The eTOC is generated electronically and offers a high-level view into the book's organization (either by subject or alphabetically) and allows you to drill down to article headings within the book. You can select a volume to view and then expand or condense section headers. Documents for all page types will be accessible from the eTOC, even those documents which are not normally searched using Basic Search or Advanced Search, such as the copyright page, a glossary, and any other front matter or back matter.
Clicking a hyperlink takes you to the document display page where you can view the corresponding page or full article. A plus sign (+) icon indicates a section or chapter which contains articles or entries. Clicking a plus icon reveals the articles within that section and causes the plus icon to become a minus sign (-) icon. Clicking a minus icon hides the subordinate articles. In eBooks where the section/chapter header pages themselves contain text (such as introductory comments) or a table of contents for that specific section/chapter, the heading will display as a hyperlink. You may reveal/hide as many sections as you wish by clicking the plus sign and minus sign icons, respectively.
Here is a sample of part of an eTOC:

By default, when you select the eTable of Contents link from a document display page, About this Publication page or other eBook pages, you will receive links to the higher level headings in the first volume of the book. If there is more than one volume to the eBook there will be a Choose a volume pull-down menu for you to select which volume to browse. Then click GO. If at anytime you realize that you wish to look at a different volume, simply make a new selection from the pull-down menu. The screen will then refresh with your new choice.
Use the Search sidebar at the left to search within the publication, or where available, within in all editions or volumes, or within the volume currently displayed.